Experienced chauffeur Peter Robinson, 52, was "head-hunted" to drive Sheikh Zayed Bin Saeed Al Nehayen while he was studying at the London School of Economics from November 2009.

Zayed is the son of Sheikh Saeed Bin Zayed Al Nehayan, who is the half-brother of the president of the United Arab Emirates.

But Mr Robinson claims he was sacked because the family feared he would damage their reputation by going to police to report Sheikh Zayed's bodyguard, Safa Tattan, for illegally injecting steroids in the run-up to a body-building competition.

He said he feared that Tattan was a bad influence on the young sheikh because they shared the same gym.